package chapter03.Example04;
class Student{
    private String name;
    private int age;
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
    public int getAge(){
        return age;
    }
    public void setAge(int age){
        if(age<=0){
            System.out.println("您输入的年龄有误");
        }else{
            this.age=age;
        }
    }
    public void read(){
        System.out.println("大家好，我是"+name+"，年龄"+age);
    }
}
public class Example04 {
    public static void main(String[] args) {
        Student stu=new Student();
        stu.setName("张三");
        stu.setAge(-18);
        stu.read();
    }
}



